[INFO] cloning repository https://github.com/DutchGhost/Genertools
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DutchGhost/Genertools" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDutchGhost%2FGenertools", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDutchGhost%2FGenertools'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be823d1781547c4768ba1bf75abbaf632d56ca94
[INFO] documenting DutchGhost/Genertools against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDutchGhost%2FGenertools" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DutchGhost/Genertools on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DutchGhost/Genertools
[INFO] finished tweaking git repo https://github.com/DutchGhost/Genertools
[INFO] tweaked toml for git repo https://github.com/DutchGhost/Genertools written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/DutchGhost/Genertools already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5fb26e4c3ec6c2b5e1829d28d8803c69b75c9a3f3b5fe16067bc6ede077dc0e5
[INFO] running `Command { std: "docker" "start" "-a" "5fb26e4c3ec6c2b5e1829d28d8803c69b75c9a3f3b5fe16067bc6ede077dc0e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fb26e4c3ec6c2b5e1829d28d8803c69b75c9a3f3b5fe16067bc6ede077dc0e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fb26e4c3ec6c2b5e1829d28d8803c69b75c9a3f3b5fe16067bc6ede077dc0e5", kill_on_drop: false }`
[INFO] [stdout] 5fb26e4c3ec6c2b5e1829d28d8803c69b75c9a3f3b5fe16067bc6ede077dc0e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f03dfc96928c66002ab68fe5ffd9e64a64d4eed92a71a454835f128f0075a7ee
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f03dfc96928c66002ab68fe5ffd9e64a64d4eed92a71a454835f128f0075a7ee", kill_on_drop: false }`
[INFO] [stderr]  Documenting genertools v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::pin::PinMut`
[INFO] [stdout]  --> src/aspin.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::pin::PinMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^ no `PinMut` in `pin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::pin::PinMut`
[INFO] [stdout]  --> src/gentrait.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::pin::PinMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^ no `PinMut` in `pin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generators, generator_trait, pin)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `genertools`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name genertools src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "f03dfc96928c66002ab68fe5ffd9e64a64d4eed92a71a454835f128f0075a7ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f03dfc96928c66002ab68fe5ffd9e64a64d4eed92a71a454835f128f0075a7ee", kill_on_drop: false }`
[INFO] [stdout] f03dfc96928c66002ab68fe5ffd9e64a64d4eed92a71a454835f128f0075a7ee